Rectified spirit obtained by fermentation contains 4.5% of water So in order to remove it, rectified spirit is mixed with suitable quantity of benzene and heated Benzene helps because

Question

Rectified spirit obtained by fermentation contains 4.5% of water So in order to remove it, rectified spirit is mixed with suitable quantity of benzene and heated Benzene helps because (A) It is dehydrating agent and so removes water (B) It forms the lower layer which retains all the water so that alcohol can be distilled off (C) It forms an azeotropic mixture having high boiling point and thus allows the alcohol to distill over (D) It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled

Tardigrade Admin · Accepted Answer

Correct answer is (d) It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled

Q. Rectified spirit obtained by fermentation contains 4.5% of water So in order to remove it, rectified spirit is mixed with suitable quantity of benzene and heated Benzene helps because

It is dehydrating agent and so removes water

It forms the lower layer which retains all the water so that alcohol can be distilled off

It forms an azeotropic mixture having high boiling point and thus allows the alcohol to distill over

It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled

Correct answer is (d) It forms low boiling azeotropic mixtures which distill over, leaving behind pure alcohol which can then be distilled